Equivalent & Substitute Parts for 78229-103H

Part Overview

The Amphenol ICC 78229-103H is a rectangular connector header with vertical orientation, 3 positions, and 2.54mm pitch. This through-hole component features male pins with press-fit and solder termination options, designed for board-to-board applications. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. Substitute parts must maintain compatibility across electrical and mechanical parameters while meeting current product availability and compliance standards.

Key Parameters

Parameter	Value
Manufacturer Part Number	78229-103H
Manufacturer	Amphenol ICC (FCI)
Series	BERGSTIK® II
Product Status	Obsolete
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	3
Number of Rows	1
Mounting Type	Through Hole
Termination	Press-Fit, Solder
Fastening Type	Push-Pull
Contact Shape	Square
Insulation Material	Polycyclohexylenedimethylene Terephthalate (PCT), Glass Filled
Material Flammability Rating	UL94 V-0
Insulation Color	Black
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 78229-103H are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Core Compatibility Parameters:

Pitch - Mating: 0.100" (2.54mm) — exact match required
Number of Positions: 3 — exact match required
Number of Rows: 1 — exact match required
Contact Type: Male Pin — exact match required
Mounting Type: Through Hole — exact match required
Fastening Type: Push-Pull — exact match required
Contact Shape: Square — exact match required
Material Flammability Rating: UL94 V-0 — minimum requirement

Secondary Compatibility Parameters:

Connector Type: Header or Header with Breakaway capability
Termination: Solder (primary); Press-Fit acceptable as secondary option
Style: Board to Board or Board to Board/Cable
Insulation Material: PCT or PBT variants acceptable
Contact Material: Phosphor Bronze, Copper Alloy, or Brass acceptable
Contact Finish: Gold, Tin, or Tin-Lead acceptable

All substitute parts listed maintain these core parameters. Variations in contact length, insulation height, contact finish thickness, and operating temperature ranges do not affect substitutability for standard applications.

Parameter Comparison

Parameter	78229-103H (Main)	0423753604 (Molex)	826648-3 (TE)	929700-01-03 (3M)	929700-11-03-RK (3M)	929705-01-03-EU (3M)	929705-01-03-I (3M)
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	3	3	3	3	3	3	3
Number of Rows	1	1	1	1	1	1	1
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Connector Type	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Press-Fit, Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Shape	Square	Square	Square	Square	Square	Square	Square
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	RoHS non-compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

For RoHS Compliance Requirements: Select from active, RoHS-compliant alternatives: Molex 0423753604, TE Connectivity 826648-3, 3M 929700-11-03-RK, 929705-01-03-EU, 929705-01-03-I, 929705-06-03-EU, 929705-06-03-I, 929705-09-03-EU, or 929705-09-03-I. These parts meet current regulatory standards for new product designs.

For Legacy System Compatibility: If the original 78229-103H is required for exact form-factor matching, 3M 929700-01-03 provides the closest electrical and mechanical alignment while offering active product status and improved availability.

For Extended Operating Temperature Range: TE Connectivity 826648-3 (-65°C to 105°C) and all 3M 929705 variants (-40°C to 105°C) provide broader temperature specifications compared to the original part.

For Current Rating Specifications: TE Connectivity 826648-3 (5A) and 3M parts (2.5A) provide defined current ratings. Molex 0423753604 does not specify current rating in available documentation.

For Contact Finish Options: Gold-plated contacts: 3M 929705 series (all variants) Tin-plated contacts: Molex 0423753604, 3M 929700-11-03-RK Tin-Lead contacts: 3M 929700-01-03 Gold-plated mating surface with tin post: TE Connectivity 826648-3

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the 78229-103H?

A: All listed substitute parts maintain the critical compatibility parameters: 2.54mm pitch, 3 positions, 1 row, male pin contacts, through-hole mounting, push-pull fastening, and square contact shape. They are electrically and mechanically compatible. However, verify your specific application requirements regarding RoHS compliance, operating temperature range, and contact finish specifications before selection.

Q: What is the difference between the 3M 929700 and 929705 series?

A: Both series are functionally equivalent for the 3-position, 2.54mm pitch configuration. The primary differences are contact finish (929700 uses Tin or Tin-Lead; 929705 uses Gold) and insulation material composition. The 929705 series offers superior corrosion resistance through gold plating. Select based on your application's environmental exposure and contact reliability requirements.

Q: Does the Molex 0423753604 have all 3 positions loaded?

A: The Molex 0423753604 specification indicates 2 positions loaded, compared to all 3 positions loaded in the original 78229-103H and most 3M alternatives. Verify that your application design accommodates this configuration before selection.

Q: Are there differences in contact length that affect compatibility?

A: Contact length variations exist across substitute parts (ranging from 0.315" to 0.380" mating length). These differences do not affect electrical compatibility with standard mating connectors. However, if your application involves custom PCB stack-up or specific mechanical constraints, contact length should be verified against your design specifications.

Q: Which substitute part offers the best long-term availability?

A: All listed substitute parts carry active product status. 3M 929705-01-03-EU shows the highest current inventory (3031 pieces), followed by 3M 929700-11-03-RK (1035 pieces) and TE Connectivity 826648-3 (966 pieces). For production planning, consult with your component supplier regarding long-term availability commitments.

Q: Can I mix substitute parts from different manufacturers in the same assembly?

A: Yes. All substitute parts meet the same core compatibility parameters and can be used interchangeably within a single assembly. However, for consistency in manufacturing documentation, traceability, and quality control, it is recommended to standardize on a single part number per design revision.

Q: What is the significance of the "-EU" and "-I" designations in the 3M part numbers?

A: These designations indicate regional or specification variants within the 3M 929705 series. Both "-EU" and "-I" variants are functionally equivalent for the 3-position, 2.54mm pitch header configuration. Selection between them should be based on regional availability and supply chain logistics rather than technical performance.

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